Use Dropbox and OneDrive Together. Moving files from Dropbox to OneDrive requires us to download them to local hard drive first as well as login at least twice.se Dropbox and OneDrive Together. Moving files from Dropbox to OneDrive requires us to download them to local hard drive first as well as login at least twice.
Disadvantages of a Pie Chart. A pie chart becomes less effective if it uses too many pieces of data. For example, a chart with four slices is easy to read; one with more than 10 becomes less so, especially if it contains many similarly sized slices.imple to create and understand, a pie chart works well when you need to present and measure simple data, but it may not suit complex needs as well as other visualization tools such as bar graphs. Other People Are Reading.
If you still think the story of the data is unclear, you can always use the pie chart as your backup. With that said, here are a few cases when pie charts work best: 1  When you have only a few data points to display, and each one is substantially different in scale.he y-axis will have a scale, and each barâs height should be proportionate to the size of the category it represents. This can create a problem if you have very disproportionate responses that impact the scale of your graph, so keep that in mind when formatting.